OpenTechnical

OT-2026-000028549

Publication integrity record

Six cup vacuum gripper, six outlet manifold, plant vacuum fed, manifold pressure sensor, sustained blow-off before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000028549) never changes.

Identity and time

Publication numberOT-2026-000028549 · never reused
Internal UUID01a0ae72-e2f8-712d-babb-aaa422ad8aca · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028549
StatusPUBLIC

Content hashes

Canonical text9eb33b1cf5b5bf1fe3531407809f466d5aed70e71e0ab66d5309baefee315601
Markdown6677cefe920980bccba9fc0b54ad4a54b354629c39b1bda376d89d2799e7c740
PDF
Publication page85b7a131e148d7589a5e039137dba34d0c8d7dfd9c8168fd88c2cf9f7490ad92
Manifest7a6b067b717407157addfb20f36d66a5f0a9b07aa0672ff1a1227b7b547c78cc

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureXve+zutztXdWOcljJQTE8BeGmpdgMjj0maxoy5rEwMyT4BDxYdHqQxi59VcFWl6+X+udtUJq2QtZdp7ed/7+Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:40:49.866900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028549
observed 85b7a131e148d7589a5e039137dba34d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:49.849339ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028549/manifest.json
observed 7a6b067b717407157addfb20f36d66a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:49.831094ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028549/publication.md
observed 6677cefe920980bccba9fc0b54ad4a54...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:49.811522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028549/publication.txt
observed 9eb33b1cf5b5bf1fe3531407809f466d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.